Chemical Resistant ASA Synthetic Resin Roof Tile for Industrial Plant Roofing Acid and alkali vapours attack metal roofing from below, while the polymer body of this ASA tile is specified for plants where chemical exposure is routine. Product name HENCING ASA synthetic resin tile Product color Brick Red, Purplish Red, Dark Green,Bule,Grey Length Customized Product thickness 2.5mm/2.8mm/3.0mm Product hight 30mm Pitch distance 160mm Efficiency 960mm Profile 1050mm Product